File:Construction Workers.jpg

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Summary[edit]

Summary
Description	Ironworkers surprised by photographer, while erecting the steel frame of a new building, at the Massachusetts General Hospital, USA.
Source	Wikimedia Commons file page
Author	photo taken by flickr Paul Keheler
Permission	See original Commons license details.

License: CC BY 2.0

License page: CC BY 2.0

Original attribution and file history: Wikimedia Commons

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	13:39, 8 June 2026		2,254 × 2,818 (2.1 MB)	Maintenance script (talk \| contribs)	== Summary == Importing file

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Camera manufacturer	Canon
Camera model	Canon PowerShot A640
Exposure time	1/500 sec (0.002)
F Number	f/4.1
Date and time of data generation	11:07, 22 September 2006
Lens focal length	29.2 mm
Orientation	Normal
Horizontal resolution	281.8 dpi
Vertical resolution	281.8 dpi
Software used	Adobe Photoshop Elements 4.0 Windows
File change date and time	13:03, 22 September 2006
Y and C positioning	Centered
Exif version	2.2
Date and time of digitizing	11:07, 22 September 2006
Meaning of each component	Y Cb Cr does not exist
Image compression mode	5
APEX shutter speed	8.96875
APEX aperture	4.0625
APEX exposure bias	0
Maximum land aperture	4.0625 APEX (f/4.09)
Metering mode	Pattern
Flash	Flash did not fire, compulsory flash suppression
Supported Flashpix version	1
Color space	sRGB
Focal plane X resolution	36,225.783972125
Focal plane Y resolution	36,267.906976744
Focal plane resolution unit	inches
Sensing method	One-chip color area sensor
File source	Digital still camera
Custom image processing	Custom process
Exposure mode	Auto exposure
White balance	Auto white balance
Digital zoom ratio	2.85
Scene capture type	Standard
Supported Flashpix version	0
Image width	2,254 px
Image height	2,818 px
Date metadata was last modified	09:03, 22 September 2006
Keywords	Boston New England construction
IIM version	2